Question

Решите уравнения: а) (3х+5х)*18=144б) (7y-5y)/8=17

Answer 1

1.8x*18=144
8x=8
x=1.
2.2y/8=17
2y=136
y=68.

Answer 2

(3х+5х)•18=144
8х•18=144
8х=144:18
8х=8
Х=8:8
x=1
8•1•18=144
144=144
(7y-5y):8=17
2y:8=17
2y=8•17
2y=136
y=136:2
y=68
2•68:8=17
17=17

Answer 3

I can help you with solving equations. Here are the steps and solutions for your equations:

а) $(3x+5x)*18=144$

- Simplify the expression by combining the like terms: $8x*18=144$ - Divide both sides by 18 to isolate x: $8x=8$ - Divide both sides by 8 to get the value of x: $x=1$

б) $(7y-5y)/8=17$

- Simplify the expression by combining the like terms: $2y/8=17$ - Multiply both sides by 8 to eliminate the fraction: $2y=136$ - Divide both sides by 2 to get the value of y: $y=68$